Create task task-062

backlog/tasks/task-062 - Account-Abstraction-(ERC-4337)-Exploration.md

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+---
+id: task-062
+title: Account Abstraction (ERC-4337) Exploration
+status: To Do
+assignee: []
+created_date: '2026-01-02 16:08'
+labels:
+  - research
+  - web3
+  - account-abstraction
+  - erc-4337
+dependencies:
+  - task-007
+priority: low
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+Research and prototype using ERC-4337 Account Abstraction to enable CryptID's P-256 keys to directly control smart contract wallets.
+
+## Overview
+Explore the possibility of using Account Abstraction (ERC-4337) to bridge CryptID's WebCrypto P-256 keys with Ethereum transactions. This would eliminate the need for wallet linking by allowing CryptID keys to directly sign UserOperations that control a smart wallet.
+
+## Background
+- CryptID uses ECDSA P-256 (NIST curve) via WebCrypto API
+- Ethereum uses ECDSA secp256k1
+- These curves are incompatible for direct signing
+- ERC-4337 allows any signature scheme via custom validation logic
+
+## Research Questions
+1. Is P-256 signature verification gas-efficient on-chain?
+2. What existing implementations exist? (Clave, Daimo)
+3. What are the wallet deployment costs per user?
+4. How do we handle gas sponsorship (paymaster)?
+5. Which bundler/paymaster providers support this?
+
+## Potential Benefits
+- Single key for auth AND transactions
+- Gasless transactions via paymaster
+- Social recovery using CryptID email
+- No MetaMask/wallet app needed
+- True passwordless Web3
+
+## Risks & Challenges
+- Complex implementation
+- Gas costs for P-256 verification (~100k gas)
+- Not all L2s support ERC-4337 yet
+- User education on new paradigm
+
+## Providers to Evaluate
+- Pimlico (bundler + paymaster)
+- Alchemy Account Kit
+- Stackup
+- Biconomy
+
+## References
+- ERC-4337 Spec: https://eips.ethereum.org/EIPS/eip-4337
+- Clave (P-256 wallet): https://getclave.io/
+- Daimo (P-256 wallet): https://daimo.com/
+- viem Account Abstraction: https://viem.sh/account-abstraction
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+<!-- AC:BEGIN -->
+- [ ] #1 Research P-256 on-chain verification gas costs
+- [ ] #2 Evaluate existing P-256 wallet implementations (Clave, Daimo)
+- [ ] #3 Prototype UserOperation signing with CryptID keys
+- [ ] #4 Evaluate bundler/paymaster providers
+- [ ] #5 Document architecture proposal if viable
+- [ ] #6 Estimate implementation timeline and costs
+<!-- AC:END -->